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With continual use how often should the fresh water tank be sanitized?

Can I add a 1/4 cup of bleach to every fill-up?

I am getting fresh water from 4 sources. The most questionable is from a spring. The other water comes from a city (small town actual) water spigot at the local park.

If it is being used continuously and sanitized to begin with, I wouldn't worry about it. City water is already sanitized. 1/4 cup of bleach for your tank is ONLY to sanitize the system. You would leave set for an hour and then flush the entire system fully.

To disinfect relatively clean water for drinking, you would add 1 3/4 teaspoons of 5% household bleach (unscented) to 50 gals of water and let it sit for an hour. This would be about 2 PPM. If you are treating water from a lake, stream or shallow well, use twice as much household (5%) bleach and let it set 2 hours before drinking. This would be 4 PPM.

I'm on well water so I hit mine with 1/4 cup of bleach every fill. And we always carry enough bottled water for drinking, so taste isn't an issue. Just something about stale water in a plastic tank makes me nervous.

I think the article goes a bit overboard, except for the paranoid If one uses their tank often, there is no need to do this. If you only use chlronated city water, there is no need to ever do it. Water itself just doesn't go bad, after all, all the water you drink today is at least 5 billion years old.

Of course as consumers, we have no idea if or how much bacteria is present, or if any substance is present that they can feed on and multiply....which is the bad part. This is why it's prudent to sanitize a tank if you leave water it in unused for long periods. I drain my tank and system when not in use.

If one encounters questionable water on the road, 2 teaspoons in 10 gals of water (waiting 60 mins) will make it safe to drink. Doing this on occasion will also keep the system safe.

I have done the cups of bleach and the 3-4 flush outs in a new to me coach, but unecessary (to me) once that's done. To each their own and comfort level.

All of the water going into our tank goes through two or three filters depending on whether it comes from a lake or stream or city system. The three filter uses an NBC (nuclear, biological, chemical) filter as the final. I sanitize once a year with Dichloride crystals.

All of the water going into our tank goes through two or three filters depending on whether it comes from a lake or stream or city system. The three filter uses an NBC (nuclear, biological, chemical) filter as the final. I sanitize once a year with Dichloride crystals.

A quick question. What is your procedure and amounts with the dichloride crystals?